I think I'll be adding some more pumpkin spice based on tasting the wort, but want to let it ferment down first before dumping anything else in. I was surprised by how far the 1/2 lb. of brown sugar went. I'm actually hoping some of that dies down in fermentation.
PS - I baked my pumpkin with a TINY bit of brown sugar and pumpkin pie spice for 30 mins, then put it in the boil at 60 mins.